Pacino and DeNiro have been responsible for some of the greatest films, I'd watch anything with Pacino in and DeNiro before 2000
Carlitos Way
Cape Fear
Taxi Driver
Raging Bull
Godfather
Scent of a Woman

Blow
American Pyscho
The Entity
Swordfish
Full Metal Jacket
Platoon

For cheese:
No Retreat, No Surrender (the sequel is ridiculous, which makes it good)
Best of the Best (1 and 2 are the best)
Double Impact
Out for Justice
Cobra